Slater
Headphoneus Supremus
Ugh...sorry, I'm not one for Rockbox. Every device and theme I've seen running it looks like an 8th grader laid out the interface - absolutely no sense of design aesthetics. In my opinon, the N3 is perfect as it is. I don't need Bluetooth, remote control, streaming, or themes. It's a small, cheap device that sounds great, has a good screen which already looks good, and is bug free. I drop a big card loaded with FLAC files, plug in a set of IEMs, and stuff it into a pocket. Cayin's tuning of the hardware and interface layout is more than sufficient, minus the one request I'd have of starting the Category view on Artist instead of Songs (or remembering the last category chosen or an option for the user to choose which item to start Category view on).
If anything, somebody should go Rockbox a Fiio X1-II and help them get the bugs out of their OS.
Keep in mind there are dozens upon dozens of Rockbox themes that can be used to customize the layout.